TAS5548DCAR datasheet(94/116 Pages) TI1

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TAS5548

SLES270A – NOVEMBER 2012 – REVISED APRIL 2015

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7.6.2.48 192kHz Dolby Downmix Coefficients (0xFB and 0xFC)

Each gain coefficient is in 28-bit (5.23) format, so 0x80 0000 is a gain of 1. Each gain coefficient is written as a

32-bit word with the upper four bits not used. For eight gain coefficients, the total is 32 bytes.

Table 82. 192kHz Dolby Downmix Coefficients

I2C

DEFAULT

TOTAL

DESCRIPTION OF CONTENTS

BYTES

SUBADDRESS

Fields

STATE

0xFB

dolby_COEF1L

192kHz SDIN1-left to SDOUT-left down-mix coefficient (default =

0029 0333

(D1_L)

1/3.121)

dolby_COEF2L

192kHz SDIN1-right to SDOUT-left down-mix coefficient (default =

001C FEEF

(D2_L)

0.707/3.121)

dolby_COEF3L

192kHz SDIN3-left to SDOUT-left down-mix coefficient (default = -

FFE3 0111

(D3_L)

0.707/3.121)

dolby_COEF4L

192kHz SDIN3-right to SDOUT-left down-mix coefficient (default = -

FFE3 0111

(D4_L)

0.707/3.121)

0xFC

dolby_COEF1R

192kHz SDIN1-left to SDOUT-right down-mix coefficient (default =

0029 0333

(D1_R)

1/3.121)

dolby_COEF2R

192kHz SDIN1-right to SDOUT-right down-mix coefficient (default =

001C FEEF

(D2_R)

0.707/3.121)

dolby_COEF3R

192kHz SDIN3-left to SDOUT-right down-mix coefficient (default =

001C FEEF

(D3_R)

0.707/3.121)

dolby_COEF4R

192kHz SDIN3-right to SDOUT-right down-mix coefficient (default =

001C FEEF

(D4_R)

0.707/3.121)

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